Desk-top calculator



FIG. 1 is a perspective view of a desk-top calculator showing our new design with the display panel in raised position;

FIG. 2 is a top plan view of the calculator with the panel lowered;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a right side elevational view thereof; and

FIG. 7 is a left side elevational view thereof. 

The ornamental design for a desk-top calculator, as shown and described. 